import Vue from 'vue'
import axios from 'axios'
import router from './index'
// import { Notification, MessageBox, Message } from 'element-ui'
import { Message } from 'element-ui'
import { getToken, removeToken } from '@/utils/auth'

axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8'
// 创建axios实例
const service = axios.create({
  // axios中请求配置有baseURL选项，表示请求URL公共部分
  baseURL: process.env.VUE_APP_BASE_API,
  // 超时
  timeout: 60 * 1000
})
Vue.prototype.$axios = service
window.axios = service
// request拦截器
service.interceptors.request.use(config => {
  // 是否需要设置 token
  const isToken = (config.headers || {}).isToken === false
  if (getToken() && !isToken) {
    config.headers['Authorization'] = getToken() // 让每个请求携带自定义token 请根据实际情况自行修改
  }
  if (isToken) {
    config.headers['Authorization'] = config.headers.token
  }
  // get请求映射params参数
  if (config.method === 'get' && config.params) {
    let url = config.url + '?';
    for (const propName of Object.keys(config.params)) {
      const value = config.params[propName];
      var part = encodeURIComponent(propName) + "=";
      if (value !== null && typeof (value) !== "undefined") {
        if (typeof value === 'object') {
          for (const key of Object.keys(value)) {
            let params = propName + '[' + key + ']';
            var subPart = encodeURIComponent(params) + "=";
            url += subPart + encodeURIComponent(value[key]) + "&";
          }
        } else {
          url += part + encodeURIComponent(value) + "&";
        }
      }
    }
    url = url.slice(0, -1);
    config.params = {};
    config.url = url;
  }
  return config
}, error => {
  console.log(error)
  Promise.reject(error)
})

// 响应拦截器
service.interceptors.response.use(res => {
  // 未设置状态码则默认成功状态
  const code = res.data.code || 200;
  // 获取错误信息
  const msg = "Error"
  if (code === 30012 || code === 30007) {
    Message({
      message: "Login session has expired",
      type: 'error'
    })
    removeToken()
    setTimeout(() => {
      router.push("/login")
    }, 200);
  } else if (code === 500) {
    Message({
      message: msg,
      type: 'error'
    })
    return Promise.reject(new Error(msg))
  } else if (code !== 200) {
    // Notification.error({
    //   title: msg
    // })
    return Promise.reject(res.data)
  } else {
    return res.data
  }
},
  error => {
    let { message } = error;
    if (message == "Network Error") {
      message = "Backend API connection error";
    }
    else if (message.includes("timeout")) {
      message = "System interface request timed out";
    }
    else if (message.includes("Request failed with status code")) {
      const errorCode = parseInt(message.substr(message.length - 3))
      if (errorCode === 400) {
        message = "Incorrect username or password";
      } else {
        message = "System interface " + errorCode + " error";
      }
    }
    // Message({
    //   message: message,
    //   type: 'error',
    //   duration: 5 * 1000
    // })
    return Promise.reject(error)
  }
)

export default service
